Search Results - "Portnichenko, P Y"

Magnon spectrum of the helimagnetic insulator Cu2OSeO3 by Portnichenko, P. Y., Romhányi, J., Onykiienko, Y. A., Henschel, A., Schmidt, M., Cameron, A. S., Surmach, M. A., Lim, J. A., Park, J. T., Schneidewind, A., Abernathy, D. L., Rosner, H., van den Brink, Jeroen, Inosov, D. S.

“…Complex low-temperature-ordered states in chiral magnets are typically governed by a competition between multiple magnetic interactions. The chiral-lattice…”
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Nesting-driven multipolar order in CeB6 from photoemission tomography by Koitzsch, A., Heming, N., Knupfer, M., Büchner, B., Portnichenko, P. Y., Dukhnenko, A. V, Shitsevalova, N. Y., Filipov, V. B., Lev, L. L., Strocov, V. N., Ollivier, J., Inosov, D. S.

“…Some heavy fermion materials show so-called hidden-order phases which are invisible to many characterization techniques and whose microscopic origin remained…”
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Pseudo-Goldstone Magnons in the Frustrated S=3/2 Heisenberg Helimagnet ZnCr2Se4 with a Pyrochlore Magnetic Sublattice by Tymoshenko, Y V, Onykiienko, Y A, Müller, T, Thomale, R, Rachel, S, Cameron, A S, Portnichenko, P Y, Efremov, D V, Tsurkan, V, Abernathy, D L, Ollivier, J, Schneidewind, A, Piovano, A, Felea, V, Loidl, A, Inosov, D S

“…Low-energy spin excitations in any long-range ordered magnetic system in the absence of magnetocrystalline anisotropy are gapless Goldstone modes emanating…”
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Field-Angle-Resolved Magnetic Excitations as a Probe of Hidden-Order Symmetry in CeB6 by Portnichenko, P Y, Akbari, A, Nikitin, S E, Cameron, A S, Dukhnenko, A V, Filipov, V B, N. Yu. Shitsevalova, Čermák, P, Radelytskyi, I, Schneidewind, A, Ollivier, J, Podlesnyak, A, Huesges, Z, J. Xu, Ivanov, A, Sidis, Y, Petit, S, J.-M. Mignot, Thalmeier, P, Inosov, D S

“…In contrast to magnetic order formed by electrons’ dipolar moments, ordering phenomena associated with higher-order multipoles (quadrupoles, octupoles, etc.)…”
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Field-Angle-Resolved Magnetic Excitations as a Probe of Hidden-Order Symmetry in CeB 6 by Portnichenko, P. Y., Akbari, A., Nikitin, S. E., Cameron, A. S., Dukhnenko, A. V., Filipov, V. B., Shitsevalova, N. Yu, Čermák, P., Radelytskyi, I., Schneidewind, A., Ollivier, J., Podlesnyak, A., Huesges, Z., Xu, J., Ivanov, A., Sidis, Y., Petit, S., Mignot, J.-M., Thalmeier, P., Inosov, D. S.

“…In contrast to magnetic order formed by electrons' dipolar moments, ordering phenomena associated with higher-order multipoles (quadrupoles, octupoles, etc.)…”
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Impurity effects on spin dynamics in magnetic and superconducting iron pnictides and chalcogenides by Surmach, M. A., Portnichenko, P. Y., Park, J. T., Rodriguez‐Rivera, J. A., Sun, D. L., Liu, Y., Lin, C. T., Inosov, D. S.

“…In this article, we summarize the effects of magnetic and nonmagnetic impurities on the spin dynamics in Fe‐based superconductors and their parent compounds…”
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Pseudo-Goldstone Magnons in the Frustrated S = 3 / 2 Heisenberg Helimagnet ZnCr 2 Se 4 with a Pyrochlore Magnetic Sublattice by Tymoshenko, Y. V., Onykiienko, Y. A., Müller, T., Thomale, R., Rachel, S., Cameron, A. S., Portnichenko, P. Y., Efremov, D. V., Tsurkan, V., Abernathy, D. L., Ollivier, J., Schneidewind, A., Piovano, A., Felea, V., Loidl, A., Inosov, D. S.

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Cascade of magnetic-field-driven quantum phase transitions in Ce3Pd20Si6 by Mazza, F, Portnichenko, P. Y, Avdoshenko, S, Steffens, P, Boehm, M, Choi, Eun Sang, Nikolo, M, Yan, X, Prokofiev, A, Paschen, S, Inosov, D. S

“…Phys. Rev. B 105, 174429 (2022) Magnetically hidden order is a hypernym for electronic ordering phenomena that are visible to macroscopic thermodynamic probes…”
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Neutron-scattering studies of spin dynamics in pure and doped CeB6 by Portnichenko, P. Y, Cameron, A. S, Inosov, D. S

“…Jenny Stanford Publishing (2021), ISBN 978-9814877565 As a simple cubic system with only one f electron per cerium ion, CeB6 is of model character to…”
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Adherence of the rotating vortex lattice in the noncentrosymmetric superconductor Ru$_{7}$B$_{3}$ to the London model by Cameron, A. S, Tymoshenko, Y. V, Portnichenko, P. Y, Sukhanov, A. S, Hatnean, M. Ciomaga, Paul, D. McK, Balakrishnan, G, Cubitt, R, Inosov, D. S

“…J. Phys.: Condens. Matter 35, 425602 (2023) The noncentrosymmetric superconductor Ru$_7$B$_3$ has in previous studies demonstrated remarkably unusual behaviour…”
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Singlet-triplet mixing in the order parameter of the noncentrosymmetric superconductor Ru$_{7}$B$_{3} by Cameron, A. S, Yerin, Y. S, Tymoshenko, Y. V, Portnichenko, P. Y, Sukhanov, A. S, Hatnean, M. Ciomaga, Paul, D. McK, Balakrishnan, G, Cubitt, R, Heinemann, A, Inosov, D. S

“…Phys. Rev. B 105, 094519 (2022) One of the key effects which is predicted to arise in superconductors without a centre of inversion is the mixing of singlet…”
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Destruction of long-range magnetic order in an external magnetic field and the associated spin dynamics in Cu2GaBO5 and Cu2AlBO5 ludwigites by Kulbakov, A. A, Sarkar, R, Janson, O, Dengre, S, Weinhold, T, Moshkina, E. M, Portnichenko, P. Y, Luetkens, H, Yokaichiya, F, Sukhanov, A. S, Eremina, R. M, Schlender, Ph, Schneidewind, A, Klauss, H. -H, Inosov, D. S

“…Phys. Rev. B 103, 024447 (2021) The quantum spin systems Cu$_2$M'BO$_5$ (M' = Al, Ga) with the ludwigite crystal structure consist of a structurally ordered…”
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Evolution of the propagation vector of antiferroquadrupolar phases in Ce3Pd20Si6 with magnetic field by Portnichenko, P. Y, Nikitin, S. E, Prokofiev, A, Paschen, S, Mignot, J. -M, Ollivier, J, Podlesnyak, A, Meng, Siqin, Lu, Zhilun, Inosov, D. S

“…Phys. Rev. B 99, 214431 (2019) Hidden-order phases that occur in a number of correlated f-electron systems are among the most elusive states of electronic…”
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Field-angle resolved magnetic excitations as a probe of hidden-order symmetry in CeB6 by Portnichenko, P. Y, Akbari, A, Nikitin, S. E, Cameron, A. S, Dukhnenko, A. V, Filipov, V. B, Shitsevalova, N. Yu, Cermak, P, Radelytskyi, I, Schneidewind, A, Ollivier, J, Podlesnyak, A, Huesges, Z, Xu, J, Ivanov, A, Sidis, Y, Petit, S, Mignot, J. -M, Thalmeier, P, Inosov, D. S

“…Phys. Rev. X 10, 021010 (2020) In contrast to magnetic order formed by electrons' dipolar moments, ordering phenomena associated with higher-order multipoles…”
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Rotation of the magnetic vortex lattice in Ru7B3 driven by the effects of broken time-reversal and inversion symmetry by Cameron, A. S, Yerin, Y. S, Tymoshenko, Y. V, Portnichenko, P. Y, Sukhanov, A. S, Hatnean, M. Ciomaga, Paul, D. McK, Balakrishnan, G, Cubitt, R, Inosov, D. S

“…Phys. Rev. B 100, 024518 (2019) We observe a hysteretic reorientation of the magnetic vortex lattice in the noncentrosymmetric superconductor Ru7B3, with the…”
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Incommensurate short-range multipolar order parameter of phase II in Ce3Pd20Si6 by Portnichenko, P. Y, Paschen, S, Prokofiev, A, Vojta, M, Cameron, A. S, Mignot, J. -M, Ivanov, A, Inosov, D. S

“…Phys. Rev. B 94, 245132 (2016) The clathrate compound Ce3Pd20Si6 is a heavy-fermion metal that exhibits magnetically hidden order at low temperatures…”
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Pseudo-Goldstone magnons in the frustrated S=3/2 Heisenberg helimagnet ZnCr2Se4 with a pyrochlore magnetic sublattice by Tymoshenko, Y. V, Onykiienko, Y. A, Mueller, T, Thomale, R, Rachel, S, Cameron, A. S, Portnichenko, P. Y, Efremov, D. V, Tsurkan, V, Abernathy, D. L, Ollivier, J, Schneidewind, A, Piovano, A, Felea, V, Loidl, A, Inosov, D. S

“…Phys. Rev. X 7, 041049 (2017) Low-energy spin excitations in any long-range ordered magnetic system in the absence of magnetocrystalline anisotropy are gapless…”
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Magnetic phase diagram of the helimagnetic spinel compound ZnCr2Se4 revisited by small-angle neutron scattering by Cameron, A. S, Tymoshenko, Y. V, Portnichenko, P. Y, Gavilano, J, Tsurkan, V, Felea, V, Loidl, A, Zherlitsyn, S, Wosnitza, J, Inosov, D. S

“…J. Phys.: Condens. Matter 28, 146001 (2016) We performed small-angle neutron scattering (SANS) measurements on the helimagnetic spinel compound ZnCr2Se4. The…”
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Impurity effects on spin dynamics in magnetic and superconducting iron pnictides and chalcogenides by Surmach, M. A, Portnichenko, P. Y, Park, J. T, Rodriguez-Rivera, J. A, Sun, D. L, Liu, Y, Lin, C. T, Inosov, D. S

“…Phys. Stat. Sol. B 254, 1600162 (2017) In this paper we summarize the effects of magnetic and nonmagnetic impurities on the spin dynamics in Febased…”
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Magnetic field dependence of the neutron spin resonance in CeB6 by Portnichenko, P. Y, Demishev, S. V, Semeno, A. V, Ohta, H, Cameron, A. S, Surmach, M. A, Jang, H, Friemel, G, Dukhnenko, A. V, Shitsevalova, N. Yu, Filipov, V. B, Schneidewind, A, Ollivier, J, Podlesnyak, A, Inosov, D. S

“…Phys. Rev. B 94, 035114 (2016) In zero magnetic field, the famous neutron spin resonance in the f-electron superconductor CeCoIn5 is similar to the recently…”
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